an electric lamp whose resistence is 20 and a conductor of 4 redidtance are connected in series to a 6v battery . Find the current through the circuit and the potential difference across the electric lamp and conductor​

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v